$ sudo apt-get install libgoo-canvas-perl libgoocanvas-common libgoocanvas3 libgoocanvas-common
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libgoo-canvas-perl is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'libgoo-canvas-perl' has no installation candidate
E: Unable to locate package libgoocanvas-common
E: Unable to locate package libgoocanvas3
E: Unable to locate package libgoocanvas-common

Me too, I noticed the problem after installing Shutter in Ubuntu 18.04. Those packages seem not to be included in Bionic's
repositories (see bug report in launchpad) and consequently absent in Tara. I haven't tried the QuickFix described in the link myself but maybe you will find it worthwhile to give it a consideration.

I suppose that's one of the ironies of life, doing the wrong thing at the right moment -C.C.

Even with new stable, non beta, actually officially supported releases it's common that not all the software you may want is available at first. With unstable beta unsupported releases like Mint 19 it's obviously going to be even worse.

My advice, unless you have seriously bleeding edge hardware and have some kind of hate on for Ubuntu, which does support Ubuntu 18.04, is to install MInt 18.3. Frankly I wish Mint could develop a larger expert user base so they wouldn't encourage using rank beginners to do their beta testing. Beginners using beta OS releases is NUTS.

...
My advice, unless you have seriously bleeding edge hardware and have some kind of hate on for Ubuntu, which does support Ubuntu 18.04, is to install MInt 18.3. Frankly I wish Mint could develop a larger expert user base so they wouldn't encourage using rank beginners to do their beta testing. Beginners using beta OS releases is NUTS.

The whole idea is trying to the most diverse users to run the beta so that bugs can be found. But...

If newbies want to install a beta, that's their choice, but shouldn't come running 'home' crying that this, that, and the other isn't working properly.

I'm being blunt because I get frustrated with people not taking responsibility of their own actions.

IF your problem has been solved, please edit your original post and add [SOLVED] to the beginning of the Subject Line. It helps other members.

...
My advice, unless you have seriously bleeding edge hardware and have some kind of hate on for Ubuntu, which does support Ubuntu 18.04, is to install MInt 18.3. Frankly I wish Mint could develop a larger expert user base so they wouldn't encourage using rank beginners to do their beta testing. Beginners using beta OS releases is NUTS.

The whole idea is trying to the most diverse users to run the beta so that bugs can be found. But...

If newbies want to install a beta, that's their choice, but shouldn't come running 'home' crying that this, that, and the other isn't working properly.

I'm being blunt because I get frustrated with people not taking responsibility of their own actions.

I was blunt because Linux newbies don't generally understand the implications of installing a beta release, and I stand by my comments.

...
My advice, unless you have seriously bleeding edge hardware and have some kind of hate on for Ubuntu, which does support Ubuntu 18.04, is to install MInt 18.3. Frankly I wish Mint could develop a larger expert user base so they wouldn't encourage using rank beginners to do their beta testing. Beginners using beta OS releases is NUTS.

The whole idea is trying to the most diverse users to run the beta so that bugs can be found. But...

If newbies want to install a beta, that's their choice, but shouldn't come running 'home' crying that this, that, and the other isn't working properly.

I'm being blunt because I get frustrated with people not taking responsibility of their own actions.

I was blunt because Linux newbies don't generally understand the implications of installing a beta release, and I stand by my comments.

My comment about being blunt wasn't anything towards your post. I agree with you. Beta releases aren't for the faint of heart.

IF your problem has been solved, please edit your original post and add [SOLVED] to the beginning of the Subject Line. It helps other members.

Me too, I noticed the problem after installing Shutter in Ubuntu 18.04. Those packages seem not to be included in Bionic's
repositories (see bug report in launchpad) and consequently absent in Tara. I haven't tried the QuickFix described in the link myself but maybe you will find it worthwhile to give it a consideration.

...
My advice, unless you have seriously bleeding edge hardware and have some kind of hate on for Ubuntu, which does support Ubuntu 18.04, is to install MInt 18.3. Frankly I wish Mint could develop a larger expert user base so they wouldn't encourage using rank beginners to do their beta testing. Beginners using beta OS releases is NUTS.

The whole idea is trying to the most diverse users to run the beta so that bugs can be found. But...

If newbies want to install a beta, that's their choice, but shouldn't come running 'home' crying that this, that, and the other isn't working properly.

I'm being blunt because I get frustrated with people not taking responsibility of their own actions.

Sorry but if you think I came crying you're absolutely lost. I started using Linux in 1995 with Slackware, when you needed to compile the kernel just to get the sound card working. So don't try to explain me what a beta is. I know this is a beta and decided to install. It's pretty stable, even to be used daily at work. I just found a issue and wanted to report it. I can't understan why it should be a problem.

Sorry but if you think I came crying you're absolutely lost. I started using Linux in 1995 with Slackware, when you needed to compile the kernel just to get the sound card working. So don't try to explain me what a beta is. I know this is a beta and decided to install. It's pretty stable, even to be used daily at work. I just found a issue and wanted to report it. I can't understan why it should be a problem.

Not a problem. Issues for beta releases should be reported in the Comments section at Mint blog LinuxMint.com

IF your problem has been solved, please edit your original post and add [SOLVED] to the beginning of the Subject Line. It helps other members.

I just found a issue and wanted to report it. I can't understan why it should be a problem.

You're missing the point: you can't report beta bugs in this forum, it's the wrong place. And you can't expect support for beta issues here, either. So it was redundant to post your issue on the forum. That's all.

If your issue is solved, kindly indicate that by editing the first post in the topic, and adding [SOLVED] to the title. Thanks!

Giving support using a blog is not very common. In my opinion, posting these issues in the forum would ease the feedback and collaboration. Or even better, using a ticket system like osTicket, Mantis or Jira. Or just GitHub